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42 Results Found For "ratio"
Showing In Stock Items. Show All 61 Items.
Harland Sharp Original Roller Rockers
If you plan on adding performance to your street machine or building a serious racer, Harland Sharp Original Series roller rockers are recommended for you. Using the very latest manufacturing technology and only the very finest materials, the Original Series rockers incorporate race-proven enhancements, such as improved strength, performance, and lighter weight over conventional rocker arm designs. Don't settle for any old rocker arm--go with a true leader in roller rocker arm technology--Harland Sharp.
( 179 )
$796.99
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$999.99
Harland Sharp Heavy-Duty Roller Rockers
Don't trust your engine investment to just any no-name rocker manufacturer. Harland Sharp heavy-duty roller rockers are specifically designed for the heavy spring pressure and high-lift geometry of highly modified engines. They're also engineered with wider bodies, resulting in increased rocker strength and longevity. So, when your engine requires extra durability, use Harland Sharp heavy-duty roller rockers.
( 60 )
$858.99
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$982.99
March Performance Sport Track Chevy Serpentine Pulley Kits
These March Performance Sport Track Chevy serpentine pulley kits are designed for the budget-minded engine builder with the same quality and innovation as the normal March Performance kits. They are designed to mount the air conditioning low and on the passenger side for a compact and clean appearance. The serpentine pulley kits will eliminate belt throwing and offer no-slip operation. These March Performance Sport Track Chevy serpentine pulley kits are manufactured from 6061-T6 billet aluminum and are available in black or silver powdercoated finishes.
( 58 )
$779.99
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$884.99
Summit Racing™ Pro SBC LS Firing Order Hydraulic Roller Cam and Lifter Kits
Summit Racing™ Pro SBC LS firing order hydraulic roller retrofit cams are available in seven stages--from a small smooth idle cam capable of towing, to a big duration stomper that's ready to go bracket racing. Utilizing the LS firing order on a traditional small block Chevy improves the engine in several ways, including exhaust sound and harmonic improvements. These kits include a premium camshaft and drop-in link bar style hydraulic roller lifters. Best of all: these Pro SBC LS firing order hydraulic roller retrofit cams are precision-ground in the USA on USA billets! Order the cam recommended or your application.
( 2 )
$941.83
PRW Platinum Series Shaft-Mount Rocker Arms
PRW Platinum Series shaft-mount rocker arm systems fulfill the needs of successful racers and performance engine builders at every level. The Performance Quotient PQx rocker arms are made from quality alloy extrusions. These systems include CNC-machined billet steel pedestals, and ground, steel alloy rocker shafts—along with PRW SCM-4135 alloy steel fasteners, studs, and bolts. PRW Platinum Series shaft-mount rocker complete kits include all the components and hardware required for a professional installation. Order the system recommended for your specific vehicle and engine size. Features, items, and specs: * Several systems to suit many cam profiles * 8 pairs of shaft-mount rockers with adjustable cup-style valve lash adjusters * SAE 42100 full complement precision needle and cage roller bearings * Rated up to 750 lbs. open spring pressure * Internal oiling system for long-lasting performance
( 10 )
$779.24
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$816.92
COMP Cams Pro Magnum Shaft Mount Roller Rocker Arms
COMP Cams Pro Magnum shaft mount roller rocker arms combine the strength of 8650 chromoly steel and the weight savings of aluminum rockers. COMP Cams took advantage of computer design to simulate the stresses that affect rockers under various operating loads. This allowed the engineers to lessen the rockers' mass at non-critical areas and strengthen the areas that take the most punishment. The results are rocker arms that are strong where they need to be and actually weigh 5 percent less at the valve than comparable aluminum rockers.
( 31 )
$838.95
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$948.95
COMP Cams Max-Lift BSR Shaft Rocker Systems
COMP Cams introduces another industry first with their Max-Lift BSR shaft rocker systems, a bolt-in bushed shaft rocker system that increases valve train stiffness helping your engine achieve higher levels of performance. By tying all eight rocker arms together on a single shaft that fits in the stock rocker stand, COMP Cams has found a way to improve valve train dynamics, increase valve train stiffness and reduce deflection under extreme loads. The increased valve train stiffness created the BSR rocker system allows your existing cam to act like a larger camshaft by transferring more of the motion to the valve or the use of more aggressive, higher lift cams without losing control of the valve train. Take complete control of your valves with the COMP Cams Max-Lift BSR shaft rocker system.
( 5 )
$774.95
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$883.95
PRW Pro Series Shaft-Mount Rocker Arms
PRW Pro Series shaft-mount rocker arm kits are comprised of components from the finest manufacturers in the world. CNC machined billet steel pedestals, ground steel alloy rocker shafts, PRW alloy steel fasteners, and studs and bolts are included in the complete kits for a professional install. Each rocker body is relieved for extra valve spring clearance and anodized for added strength. Choose the kit designed for your vehicle.
( 1 )
$775.05
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$918.18
March Performance AMC Serpentine Drive Kits
March Performance AMC serpentine drive kits spin performance and style. These pulley and bracket units are CNC-machined from solid billet 6061-T6 aluminum that offers a perfect fit, high strength, and a spectacular look. The kits come complete with stainless steel tensioning rods, chromoly rod ends, and necessary Grade 8 mounting hardware. March AMC alternator bracket kits include: * Alternator pulley with fan and nose cover * Water pump pulley * Alternator bracket * Crank pulley Kits with power steering include everything above, plus: * Power steering pulley with nose cover * Bracket
( 3 )
$816.99
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$984.99
COMP Cams Ultra Pro Magnum Rocker Arm Upgrade Kits
COMP Cams Ultra Pro Magnum rocker arm upgrade kits include Ultra Pro Magnum rocker arms, guide plates, rocker studs, adjusting nuts, and set screws. These kits are designed to fit under the stock valve covers without machining. Build up your engine with COMP Cams Ultra Pro Magnum upgrade kits.
( 1 )
$784.95
PRW Pedestal-Shaft Rocker Arms
PRW pedestal-shaft rocker arms are made from 6061-T6 or Series 7000 2024 aircraft quality aluminum alloy extrusions. Each rocker body is relieved for extra valve spring clearance and anodized for added strength. Each rocker body is shot-peened and machined for extra valve spring clearance; then anodized for better cooling and added strength. Each rocker arm incorporates needle roller bearings from the finest manufacturers in the world. CNC-machined billet steel pedestals, center-ground steel alloy rocker shafts, and PRW Custom-4135 alloy steel fasteners, valve lash adjusters and 12-pt. lash nuts comprise the foundation of these rocker arm systems. The kits come with the components and necessary hardware required for a professional installation. Order the rocker arms designed for your application needs. Features and characteristics: * Rated 750 lbs. open spring pressure * Internal oiling system for long-lasting performance * SAE 42100 full complement precision needle and cage roller bearings * Available in 1.5 or 1.6 ratio, and 1.5/1.6 split-ratio assemblies
Not Yet Reviewed
$775.05
March Performance Ultra Style Serpentine Systems
March Performance Ultra Style serpentine systems are designed to convert your standard V-belt pulleys to a single ribbed serpentine belt. The kits are available for Mopar, Chevy, Ford, Oldsmobile, Pontiac, and Buick engines—so they are likely to have your application covered. These systems include billet aluminum pulleys that are clear powdercoated, along with the correct brackets and mounting hardware. March Performance Ultra Style serpentine systems are available with or without power steering to suit your specific vehicle.
( 12 )
$779.99
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$962.99
Crower Enduro Stainless Steel Stud Mount Roller Rocker Arms
These proven rollerized rockers from Crower are made from 17-4PH stainless steel with 1025 heat treating. They feature premium oversized needle bearings, sure-lock rocker nuts, and alloy steel tip rollers. Their superior, lightweight body design provides plenty of clearance for large-diameter springs.
( 24 )
$975.99
March Performance Ford FE Serpentine Kits
Now Ford FE owners can get March Performance style and reliability. Their Ford FE serpentine kits feature a unique one-piece bracket and optional power steering brackets for mounting a Saginaw-style pump. The kits are precision CNC-machined to run perfectly true and are designed for daily street driving. They are made from 6061-T6 aluminum for extra strength and wear and are finished with a maintenance-free clear powdercoating. These Ford FE serpentine kits come complete with stainless steel tensioning rods and chromoly rod ends for high performance operation. Matching serpentine pulleys are precision CNC-machined, and all necessary hardware is included.
( 10 )
$819.99
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$840.99
March Performance Ultra Series Chevy Small Block Serpentine Kits
March Performance Ultra Series Chevy Small Block serpentine systems bolt to the front of 1969 or later small block Chevy heads. Precision CNC-machined from solid billet 6061-T6 aluminum to fit perfectly and handle high torque and vibration, these bracket kits come complete with stainless steel tensioning rods and chrome moly rod ends for high performance operation. All necessary hardware included. Powdercoated to eliminate polishing in those hard to reach places. Matching serpentine pulleys are precision CNC-machined from 6061-T6 aluminum. This is the same material March uses for NASCAR pulleys! These pulleys will not fracture like common cast pulleys. High tensile strength means much longer wear. March hard coats the high-wear areas on the high-water flow ratio pulleys! The street rod ratio increase water flow and fan speed. This helps at critical low speed driving.
( 10 )
$804.99
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$942.99
March Performance Chevy Small Block Serpentine Drive Kits
March Performance Chevy small block serpentine drive kits simply mount onto the front of your water pump and manifold. These pulley kits are for people with single-carbureted engines, who want to high-mount the A/C and alternator. The pulleys are precision CNC-machined from solid billet 6061 T-6 aluminum and have a maintenance-free, clear powdercoated finish. These high tensile strength pulleys will not fracture like common cast pulleys, since they were made for much longer wear. Their street rod ratio increases water flow and fan speed, which will help during critical low-speed driving.
( 18 )
$750.99
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$989.99
March Performance Chevy LS Series Serpentine Kits
March Performance Chevy LS Series serpentine kits offer an exciting new look when mounting an accessory drive in your vehicle. They're designed for vehicles that do not have air conditioning. The driver side features a remote power steering pump with an attractive aluminum cover, while the passenger side has March's own billet alternator (except where noted). An OEM-style tensioner ensures perfect belt tension. All pulleys and brackets are CNC-machined from 6061-T6 aluminum for strength and perfect fit—and hard-coated on high wear areas for durability. Order the kit recommended for your vehicle. LS Series kits include: * Aluminum water pump * March billet alternator (except where noted) * Alternator pulley with fan * Water pump pulley with nose cover * Alternator bracket * Polished spring-loaded belt tensioner with cover * Crank pulley (required adapter sold separately) * Mounting hardware Kits with power steering include: * Type 2 remote power steering pump * Billet pump case * Power steering pulley with nose cover * Mounting hardware
( 1 )
$826.99
Cylinder Works Big Bore Cylinder Kits
Eliminate the wait with Cylinder Works big bore cylinder kits. They arrive ready to install, eliminating the hassle of sending out your cylinder for re-plating or boring, and they're competitively priced compared to typical re-plating costs. These Cylinder Works cylinders look virtually identical to your OEM parts and are conveniently available in "stealthy" big bore sizes. Cylinder Works big bore cylinder kits come in a variety of sizes, so choose the one that best fits your application. Features include: * Super-convenient--just purchase and install * Nickel silicon carbide plated for long life * Honed to exact size for easy piston installation * Complete with gaskets, cylinder, and piston kit * No machine work required
Not Yet Reviewed
$767.69
March Performance Serpentine Pulley Conversion Kits
Replace your low performance V-belt pulleys and brackets with performance serpentine kits from March. They feature March's all-billet performance pulleys and brackets, which are designed to free up extra horsepower, while eliminating the possibility of belt throwing.
( 17 )
$750.99
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$948.99
March Performance Ultra Series Ford Small Block Serpentine Conversion Kits
Make the switch to serpentine pulleys.March Performance Ultra Ford small block serpentine conversion kits use a unique one-piece bracket that is designed to fit both fuel injection and carbureted engines using reverse-rotation water pumps. Kits include: * Stainless steel tensioning rods * Chromoly rod ends * Crankshaft pulley * Water pump pulley with nose cover * Alternator pulley with fan and nose cover * Optional power steering pulley and brackets * Optional air conditioning pulley and brackets * Grade 8 mounting hardware
( 15 )
$784.99
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$974.99
March Performance Chevy Big Block Serpentine Conversion Kits
March Performance Chevy big block serpentine conversion kits simply bolt onto the front of any big block Chevy heads. Depending on the kit you choose, the alternator, A/C, and optional power steering will be either outward or mid-mounted. These pulleys are precision CNC-machined from solid billet 6061 T-6 aluminum to fit perfectly and handle high-torque and vibration. They are then clear powdercoated to eliminate polishing in those hard-to-reach places. These pulleys will not fracture like common cast pulleys, since they have high-tensile strength for much longer wear. The street rod ratio increases water flow and fan speed, which helps during critical low-speed driving. The kits are available with performance pulleys for increased horsepower, high water flow ratios for increased cooling, or mid-performance ratios for a combination of both.
( 51 )
$896.99
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$975.99
March Performance Chevy Small Block Serpentine Conversion Kits
March Performance Chevy small block serpentine conversion kits are mid-mount pulley kits that place your alternator below the centerline of the water pump. They are simple to bolt on, while still retaining your standard-rotation water pump. Serpentine belts eliminate belt throwing. The kits are available with performance pulleys for increased horsepower, high water flow ratios for increased cooling, or mid-performance ratios for a combination of both. The pulleys are CNC-machined from solid billet 6061 T-6 aluminum for a spectacular looking machine finish with a perfect fit and extra-high strength. All March Performance billet pulleys and brackets have a maintenance-free clear powdercoating. These performance pulleys will increase your engine by approximately 12 to 15 hp, depending on the accessories driven. The kits are available with a driver side mounted A/C option. The use of a combination bracket in these kits allows for the addition of an alternator idler, which provides excellent belt wrap around the alternator and A/C compressor pulleys.
( 96 )
$825.99
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$942.99
Mahle LSX Combo PowerPak Piston and Ring Kits
Mahle Motorsports offers GM LSX Combo PowerPak piston and ring kits, designed for high-output, naturally aspirated, power-adder applications. These Combo PowerPak kits offer the best of strength in an all-forged aluminum alloy piston to allow for increased detonation resistance, and a combination valve pocket design that will cover LS1, LS3 and LS7 cylinder heads. Features and benefits of these LSX Combo kits include: * PowerPak pistons are all dual-coated with Phosphate coating to provide the piston's characteristic gray appearance (dry lubricant provides a lubricant film protection in the pin bores and ring grooves) * Each slipper skirt is treated with Grafal; Mahle's proprietary coating to reduce wear, drag, scuffing, friction, and piston noise * If the valve pocket layout is unknown when assembling the short block, these pistons will accommodate an LS1-style cathedral port, LS3-style rectangle port, and also LS7-style cylinder heads * With listings for flat tops, dishes, and domes, these Combo PowerPak piston kits will not lock you into a single configuration, allowing for changes that can be made, as needed * Compression ratios are available from 10:1 and cruise all the way up to 14:1 with bore options ranging from 4.000 in. to 4.185 in.
( 4 )
$812.36
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$960.23
Edelbrock Ford Flathead Cylinder Heads
Edelbrock Ford flathead cylinder heads feature your choice of the original Edelbrock script logo or the block-style logo. Designed for both Fords and Mercurys, these heads are rugged, ribbed internally and externally, with a large water capacity, and excellent breathing characteristics. Available with 74 cc or 65 cc chamber volumes, the 65cc heads support an 8.0:1 compression ratio on blocks with a 3/16 in. base relief (stock bore and stroke); compression ratio increase is approximately 3/10 of a percent with each 1/8 in. of stroke increase. The high lift/large chamber versions feature a new "raised roof" combustion chamber design and are CNC-machined for high lift cams. Perfect for reducing compression in supercharger applications or for low octane fuel, they offer increased valve clearance and improved flow capacity. Match these heads with Edelbrock's popular Ford flathead intake manifolds. Edelbrock Ford flathead cylinder heads are cast at the Edelbrock foundry in the USA of T-6 tempered A356 aluminum. They're available for a wide range of vehicles from the 1930s, '40s, and '50s.
( 7 )
$987.50
